Debugging Challenge

After almost a week of struggling, I finally debugged this script so that the cube would move.

{
    public Transform targetTransform; // the transform contains the target position
    Vector3 startingPosition; // has the starting location at the beginning
    float speed = 5f; // The cube speed has a float value of 5
    float startTime, journeyLength;
    

    // Start is called before the first frame update
    void Start()
    {
        startingPosition = transform.position; // it is storing the cubes initial position at the starting position variable

        startTime = Time.time; // Start time has the same value as Time.time

        journeyLength = Vector3.Distance(startingPosition, targetTransform.position); // it stores the cubes distance from its initial position to the target position
    }

    // Update is called once per frame
    void Update()
        {
            float distCovered = (Time.time - startTime) * speed; // Distance that the player covered has the same value as time.time subtracting from startTime times speed

            float fractionOfJourney = distCovered / journeyLength; // Distance that the player has covered is divided by the journeyLength (Part of the journey in a value of 0 to 1)

            transform.position = Vector3.Lerp(startingPosition, targetTransform.position, fractionOfJourney); // The initial position equals the value as the Vector3.Lerp and it stores the cube from the initial position to the target position and finally a fraction of the destination (this line is the movement of the cube) (value of 0 to 1)
        }
}

The main thing that I had to do was make a reference to the object and make the target Transform public. That allowed me to drag in the target location and make the cube move by itself. Here's the end result: